Security checks were also tightened up and extra officers deployed after Belgian federal police received a warning of a potential threat to the 10.56am Brussels to London service.
The scare came on the day the Prime Minister’s Brexit letter was reportedly delivered to the Belgian capital aboard Eurostar.
However, in practice enforcement can be lax and "unofficial" brothels are tolerated.
The Caffmos Community is a safe, friendly and informative environment for older gay men and their admirers to enjoy new contacts and find friendship.
Eurostar passengers were banned from taking liquids on board with them in a terror alert this week.
Furious travellers were forced to discard expensive perfumes, alcohol and toiletries at check-in at Brussels on Tuesday morning without any prior warning.
There have been a series of measures to tighten airline security since the 9/11 attacks on the United States in 2001.
Last week, the UK implemented a ban on laptops and other large electronic devices in airline cabin baggage from Turkey, Lebanon, Egypt, Saudi Arabia, Jordan and Tunisia.
Furious travellers were forced to discard expensive perfumes, alcohol and toiletries without any prior warning.